Introducing our revolutionary HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering marvels seamlessly amalgamate pressure, flow, and directional control into a singular, harmonious unit, ensuring unmatched performance and unfailing reliability. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for seamless integration into high-end hydraulic systems, crucial in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and nuanced control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Additionally, they support the simultaneous operation of multiple actuators under varying loads, delivering unrivaled performance and versatility across diverse applications.
The HLPSL valves are expertly designed for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced hydraulic control requirements.
| References |
size 2 |
size 3 |
size 5 |
| Number of Directional Valve bank |
1~12 |
1~12 |
1~10 |
| Port access type |
thread connection |
thread connection |
thread connection |
| Flow code |
3,6,10,16,25,40 |
3,6,10,16,25,40,63,80 |
16,25,40,63,80,120,160 |
| Max.flow(L/min) |
54 |
100 |
210 |
| Max.pressure(bar) |
420 |
420 |
420 |
| Control Method |
Pilot circuit pressure(bar) |
20~40 |
20~40 |
20~40 |
| Manual force(N) |
≥2.3Nm |
≥1.3Nm |
≥3Nm |
| Working Pressure(ºC) |
-40~80 |
-40~80 |
-40~80 |
| Weight |
Connection Block (kg) |
1.7 |
4 |
8 |
| Directional Valve bank (kg) |
1.9 |
4 |
8 |
| End Plate (kg) |
0.5 |
1.5 |
2.5 |
| Fix mode |
thread connection M8 |
thread connection M8 |
thread connection M10 |
Installation Instructions
(1)Basic Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R of the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Component:
C,Standard Type;
G,Throttle Valve (Only used for HLPSL);
H,Fixed Differential Overflow Valve for Enhancing Circulating Pressure (approximately 14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure:0 without pressure reducing valve; 1 with pressure reducing valve (20 bar); 2 with pressure reducing valve (40 bar);
(5)2/2-way Magnetic Ball Valve for System Unloading: C, without magnetic ball valve; F, normally open magnetic ball valve-when power is supplied, the pump pressurizes; when power fails, the pump unloads; D: normally closed magnetic ball valve-when power is supplied, the pump unloads; when power fails, the pump pressurizes; D../F. . , with Pressure Limiting Valve, it can act as secondary pressure (F50) with indicated pressure value;
(6)Tool-Adjustable, Pressure Limiting Valve in the Connection Block: Pressure limiting valve settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (only for HLPSV);
(7)Product Series: -2 series;-3 3 series; -5 5 series;
(8)Thread size of directional spool valve ports A & B: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow controller: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable;
(10) Function symbol of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Available maximum output flows for ports A & B (L/min): 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210;
(12) Secondary pressure limitation: N, no pressure limiting protection; C, simultaneous pressure limit for actuator ports A & B; A---B---, separate pressure limit for actuator ports A & B; unit (bar);
(13) Function ON/OFF and pressure outlet: N, without function ON/OFF and pressure outlet; X, C type pressure limitation; S/S1, AB type pressure limitation; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B;
(14) Operation manner: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively);
(15) Ancillary block: /2 Ancillary block port size G3/8; /3 Ancillary block port size G1/2; /4 Ancillary block port size G3/4; /5 Ancillary block port size G1;
(16) End plate: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1 with port Y additionally attached; E3, standard with a 2-position 3-way magnetic ball valve; during power supply, the system pressure rises to the safety valve pressure;
E4, similar to E1 with internal discharge of pilot oil, port T can be sealed; E5, similar to E2 with internal discharge of pilot oil, port T can be sealed; E6, similar to E3 with internal discharge of pilot oil, port T can be sealed;
(17) Control voltage and the length of anti-explosion type cable: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of groundbreaking innovation and unparalleled excellence in the hydraulic industry. As an esteemed member of the China Baoan Group (stock code: 000009), we proudly stand as a national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of premium hydraulic components, our distinguished status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This dedication firmly positions us as leaders in our field.
Our flagship product, the Load Sensitive Valve with Advanced Control for Truck Crane Safety, represents the pinnacle of cutting-edge hydraulic system control. Meticulously engineered for construction machinery and heavy-duty equipment, this versatile and adaptable component is essential in high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic collaborations with leading domestic manufacturers, playing a vital role in localizing core hydraulic components for high-end mechanical equipment. Guided by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are dedicated to delivering exceptional products, services, and solutions. Our mission is to rise as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
Question:1. What about the lead time?
Answer:Our standard lead time for production is approximately one month after receiving your payment. This period allows us to meticulously prepare and conduct stringent quality control processes, ensuring that every product is delivered to you in flawless condition.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We pride ourselves on offering an exceptionally low minimum order quantity, allowing you to even order a single piece for sample checking. This flexibility caters to your specific needs and provides the utmost convenience for your projects.
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Answer: To place an order, first, share your detailed requirements or application needs. We'll then provide a tailored quote based on your specifications or our expert recommendations. Upon your approval of the drawings,drawings,and placing a deposit, we will formalize the order and commence production. Our team will ensure every specification is met with precision, delivering a seamless and customized solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, you can have your logo printed on the product. Please inform us formally before production starts, and confirm the design based on the sample we provide. This guarantees that your branding is represented with impeccable quality and precision.
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